Recently, the team of Associate Professor Li Haichao and Associate Professor Guo Yinben from School of Materials Science and Engineering of SUES published a research paper titled “Highly Corrosion- and Wear-Resistant Triboelectric High-Entropy Metallic Glass” in Advanced Functional Materials, a top journal in the field of functional materials. SUES’ School of Materials Science and Engineering is the first completion unit of this paper, with Associate Professor Li Haichao and Associate Professor Guo Yinben serving as co-corresponding authors.
The Triboelectric Nanogenerator (TENG) can convert low-frequency mechanical energy such as wind, waves, and human motion into electrical energy, which is a critical technical path for low-carbon energy and self-powered sensing. However, traditional metal electrodes such as copper and aluminum are prone to performance degradation in environments with high humidity, salt spray and corrosion, which limits the long-term stable operation of devices in complex outdoor scenarios. To address this key problem, the research team proposed a design strategy for triboelectric metallic glass materials modified by high-entropy alloys, and developed the HEMG-TENG device with excellent triboelectric output, corrosion resistance, wear resistance and high-humidity stability. The power density of this device reaches 806.2 mW m⁻², which is about 13 times that of the traditional copper-based TENG; it can retain more than 95% of its output performance under 94% relative humidity, and the performance degradation is less than 5% after 30 days of simulated seawater immersion. The team further constructed a rotating disc power generation device that can light up 84 LEDs, and operates stably in a riverbank wind warning system, providing a new material design idea for the development of long-life, environment-adaptive mechanical energy harvesters and outdoor self-powered electronic devices.
Structure and Outdoor Application Demonstration of the HEMG-TENG Device
In recent years, the team of Associate Professor Li Haichao and Associate Professor Guo Yinben has carried out continuous research on metastable materials, new energy functional devices and their service reliability, and has made a series of progress in the fields of amorphous alloys, high-entropy alloys, triboelectric nanogenerators and extreme environment energy harvesting. Relevant achievements have been published in international journals such as Advanced Materials and Advanced Functional Materials.
